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FrozenT [24]
3 years ago
15

What causes people to feel lonely like, what chemicals does the brain produce?

Biology
1 answer:
babunello [35]3 years ago
8 0
Estrogen can make people feel low, sad and thus maybe lonelier. I'm pretty sure thts right
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Please help me! <br> how can invasive species change an ecosystem?
nlexa [21]

Answer:

by introducing an invasive species it can drastically change the ecosystem. let's say you have the manatee, it has no natural predators, if you add an invasive species that eats manatees it may cause other things to start eating them too. this would cause the population to dwindle until there are few to none left because the invasive species population will go unchecked because nothing is accustom to eating them

4 0
3 years ago
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How do researchers prepare an intron-free copy of a eukaryotic gene for use in creating transgenic bacteria?
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The researchers prepare an intron-free copy of the eukaryotic gene for the use in creating the transgenic bacteria by using the reverse transcriptase to make the cDNA from the mature mRNA

The structure of the eukaryotic genes. Most of the eukaryotic genes are contain the segments of the coding sequences (exons) that interrupted by the noncoding sequences (introns). Both the exons and the introns are transcribed to yield a long and primary RNA transcript.

Eukaryotic DNA is the linear, compacted into the chromosomes by the histones, and has the telomeres at each end to protect from the deterioration. The Prokaryotes contain the circular DNA in addition to the smaller, transferable DNA plasmids. Eukaryotic cells contain the mitochondrial DNA in the addition to the nuclear DNA

To know more about eukaryotic gene visit:

brainly.com/question/28297163

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Pleas help thanks sssssss
Strike441 [17]
The one that is not. Mark me brainliest :)
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Yes. It is a mechanical process.
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Overuse of resources is a serious issue that will affect generations to come. Identify which practice is NOT being used, or rese
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C. Mining asteroids has not really been a concern unlike the other 3.
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